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OnKeyDown Method

MenuBase::OnKeyDown Method

Provides class handling for the KeyDown routed event that occurs when the user presses a key.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected:
virtual void OnKeyDown(
	KeyEventArgs^ e
) override

Parameters

e
Type: System.Windows.Input::KeyEventArgs

The event data for the KeyDown event.

If the user presses ESC, ALT+ALT, or ALT+F10, this implementation marks the KeyDown event as handled by setting the Handled property of the event data to true.

Notes to Inheritors

If you override OnKeyDown, always call the base implementation in your OnKeyDown implementation. Failure to call the base implementation prevents base classes from handling the event with a class handler, which might change the run-time behavior of the final class. You can call the base implementation either before or after your special handling, depending on your requirements.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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